... -stage pusher centrifuge has been sucessfully usen for folowing materials:Sodium Chloride, Sodium Sulphate, Sodium bichromate, Ammonium Sulphate, Boric Acid, Cellulose Acetate, Nitrocellulose, Urea ... , PVC, Potassium Chloride, Potas- sium Sulphate, Potassium Carbonate, Phosphate, Etc. Technical Parameter ...